12*9cm colored paper is separated as shown in the drawing.

Draw lines along the four edges as shown in the figure, and cut a small triangle on the right.

fold in half along the drawing line.

stick the four corners together.

18*9cm colored paper is separated as shown in the drawing.

cut off two small pieces in the middle.

fold in half along the drawing line.

stick them together as shown in the figure.

assemble the two as shown in the figure.

make five drawers at a time and stick them together.

Put two pieces of colored paper on both sides of the drawer, and the lovely small drawer will be ready.